X.Org X Server: Privilege escalation

X.Org X Server: Privilege escalation A vulnerability in X.Org X Server may allow users to escalate privileges. xorg-server 2021-04-30 2021-04-30 782679 local, remote 1.20.11 1.20.11

The X Window System is a graphical windowing system based on a client/server model.

It was discovered that X.Org X Server did not sufficiently check the length of the XInput extension’s ChangeFeedbackControl request.

An authorized attacker could possibly escalate privileges, or cause a Denial of Service condition.

There is no known workaround at this time.

All X.Org X Server users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.20.11"

CVE-2021-3472 whissi whissi